Collector and separator



Feb. 17. 1925. 1,526,743

R. L. DOWDALL COLLECTOR AND SEPARATOR Filed March 19, 1924 2 Sheets-5heet 1 flzayz,

WITNESS=' ATTORNEY Patented Feb. 17, 1925.

PATENT .oFFicE.

SEOZX :Q QBEB IN, .KANfiA connnc'ron AND snranlaron.

Application filed March 19, 1924. Serial No. 700,362.

To all whom it may concern: 7

EBe it known that 11, Roy DowoanL, .a 1

citizen of the United States, residing at Oberlin, in the 1 county :01 tEeca-tur andcstate' o'fWKansas, have invented :new and useful Improvements in Collectors and Separators, of iwhich the following tiS ;a specification.

adapted for attachment to the discharge {o l any '.t'an, cleaner .or dust abstract ng denies whereby :to collect andiseparate-the 'llgl t nd broken partlcles of grain from kdarstlandrto ren'iove both deem the ,airhdischanged ifrom the device.

An important and more specific object is the provision of a device of this character which is provided with means whereby additional suction is applied to the heavier particles collected for the purpose of insuring the removal of any chafi', dust or the like therefrom subsequent to the collection.

Yet another object is the provision of a device of this character provided with means for regulating or even cutting ofi' communication between the successive compartments whereby all the material may be caused to collect in one.

An additional object is the provision of a device of this character which will be simple and inexpensive in manufacture, positive a nd automatic in operation, efiicient and durable in service and a general improvement in the art.

\Vith the above and other objects and advantages in view the invention consists in the details 01 construction to be hereinafter more fully described and claimed and illustrated in the accompanying drawings, in which:

Figure 1 is a vertical section taken longitudinally of the device and showing it associated with a blower,

Figure 2 is a cross section on the line 2-2 of Figure 1,

Figure 3 is a detail section on the line 33 of Figure 2,

Figure 4 is a cross section on the line 4:4: of Figure 1.

The remaining two figures are detail views of the gate.

Referring more particularly to the drawings the letter A designates a blower or fan associated with a cleaner or dust abstractingidevice for grain, B indicating the :inlet toitheiblolwer and aCthe outlet.

in carrying out the present invention I provide a cylindnical duum :10 having a conical :bottom :1r1 rfrom which leads an outlet pipe 112. Fithin and concentric with g the drum 10 is an inner drum 13 having a iEllIS invention irelates ,toseparators and" has for utspbgectithe iPLOSilSlQil of aderuoe tapered b ttom 14 equipped with an outlet pipe to which {connected a branch fi1i6 leadingvto the suction "pipe Bre th ib ew r, tithin iand con centric -.with th e inner drum lgflfifilpfipe 1 7 for the outlet 0d air and this pipe !is here represented connected y an elbow @118 with a tl ohwjg pipe 1 ,a (one itie of the cl rics li an {inlet mo e ni 12.0 which c nnects wi the outle C of the blower or fan and which leads through or across the space between the outer and inner drums. At one side this conduit is cut away or formed with an opening 21, and its top is similarly cut away as shown at 22. The conduit discharges into the inner drum 13. Secured within the space between the two drums is an inclined deflector plate 28 which leads from the top of the drum to the bottom of the conduit.

In the operation, the material discharged from the blower 0 passes through the conduit 20, the heavier particles such as broken grain and the like passing straight through into the drum 13 and accumulating in the bottom thereof and eventually passing out through the pipe 15 into a suitable receptacle. It will be observed that suction exerted by the blower through the pipe 16 will operate to remove any dust from this broken grain and the like as it falls through the pipe 15. The dust, chaff and the like will not pass on into the drum 13 but will escape through the openings 21 and 22 into the outer drum and. will be given a whirling motion and will accumulate within the bottom 11 and be discharged through the pipe 12. The deflector plate 23 operates to cause the whirling light material to pass under the conduit 20 as it circulates within the drum.

For the purpose of regulating or cutting off communication to the inner drum, I provide a slidable gate 24 located at the dis charge end of the conduit 20 and adjustable :for partly or entirely closing the out let end. Any desired means, such as the notched bar disclosed, may be provided for holding this gate in a selected position. If this gate is closed it is obvious that the en tire amount of material will accumulate within the outer drum 10. The light material being separated out of the blast and accumulating within the outer drum 10 insures the discharge of only clean air through the pipe 17.

\Vhile I have shown and described the preferred embodiment of my invention it is of course to be understood that I reserve the right to make such changes in the form, construction and arrangement of parts as will not depart from the spirit of the invention or the scope of the subjoined claims.

Having thus described my invention I claim:

1. In combination with a blower, a separating device, comprising an outer drum having a tapered bottom equipped with an outlet pipe, an inner drum spaced from the outer drum and having a tapered bottom equipped with an outlet pipe, an air discharge pipe within the inner drum having its lower end communicating with the outer drum, and an inlet conduit leading from the discharge end of the blower and extending through the outer drum to the inner drum and communicating with both.

2. In a device of. the character described, the combination of an outer drum having a tapered bottom terminating in a central discharge pipe, an inner drum spaced from the walls of the outer drum and connected with the top thereof, the inner drum having a tapered bottom spaced considerably above the bottom of the outer drum and provided with a discharge pipe extending out through the side of the first named drum, an outlet pipe extending through the inner drum axially thereof and extending through the bot tom thereof in spaced relation above the bottom of the outer drum, a blower, a pipe leading from the second named drum to the inlet of the blower, a conduit leading from the outlet of the blower radially through the outer drum and into the second named drum, and means for controlling communication between said conduit and the second named drum.

In testimony whereof I afiiX my signature.

ROY L. DOWDALL. 

